FEATURE suggestion git commit --amend <ref>

git rebase -i seems a little more tedious/unfriendly than I'd like if all I want to do is edit HEAD~2 (assuming no merges) it's a bit of a pain to do a rebase -i and then pick which patches to edit. might be nice to be able to do stuff like git commit --amend <ref> and have that call rebase (as I think not rebasing is impossible?) with edit only on the ref I picked.

hopefully I've explained well enough.